I'd definitely go with the second-hand Isla biek if possible, or Decathlon do some great 24" bikes- I've bought 2 recently, a silver and blue rockrider with a triple and front suspension, and a brown rigid btwin with a single chainring. neither is as light as an Isla will be, but they are really good bikes and an absolute bargain- off the top of my head I think they were £130 and £110 respectively, and they're really well set-up and easy to maintain, good V brakes and components.
Only problem is the Decathlon website is shit.
I'd definitely go with the second-hand Isla biek if possible, or Decathlon do some great 24" bikes- I've bought 2 recently, a silver and blue rockrider with a triple and front suspension, and a brown rigid btwin with a single chainring. neither is as light as an Isla will be, but they are really good bikes and an absolute bargain- off the top of my head I think they were £130 and £110 respectively, and they're really well set-up and easy to maintain, good V brakes and components.
Only problem is the Decathlon website is shit.